Fix typos and update non-evergreen content

[michael-sumner]

Is your enhancement related to a problem? Please describe.

There are a few typos that will need updating in the docs as well as updating non-evergreen content related to browser support.
Please see:

• fix typo #390
• update browser support text #389

Designs

No response

Describe alternatives you've considered

No response

Code of Conduct

• I agree to follow this project's Code of Conduct